bullet

Compared meaning: a metal projectile from a gun (noun).

比较义项：子弹（名词）。

• bullet 本词

  The general, neutral word for the metal projectile fired from a gun; used in everyday and technical contexts alike, for a loaded round or a spent projectile.

  泛指从枪中射出的金属弹丸的常见中性词，日常和专业语境均可使用，既可指装在枪里的子弹，也可指已发射出去的弹头。

  Doctors removed the bullet from his shoulder after the shooting.

  医生在枪击事件后从他肩膀里取出了子弹。

• slug

  A more informal, mostly American term, especially in police, crime-fiction or ballistics contexts, for a spent or recovered bullet; not used for a live round still in the gun.

  较随意的说法，尤其在美式英语中，多用于警方、犯罪小说或弹道学语境，特指打中后取出（或发现）的弹头，不用来描述装在枪里待发的子弹。

  Forensics matched the slug found at the scene to his revolver.

  法医将案发现场找到的弹头与他的左轮手枪进行了比对。

Both words mean a metal projectile fired from a gun. Bullet is the general, neutral word, used in everyday and technical contexts. Slug is more informal, mostly American, used in police or crime-fiction contexts, mainly for a spent or recovered bullet.

这两个词都可以表示枪支射出的金属弹丸，但语气不同：slug 语气更随意，常见于警方、侦探小说或弹道学语境，尤其指打中后取出的弹头；bullet 是最常用、中性的说法，既可指装在枪里的子弹，也可指已发射出去的弹头。这里不比较 slug 的其他义项，如“蛞蝓”（软体动物）或口语中的“猛击、揍一拳”。